Imported Debian patch 1.1.1+rev1207-1debian/1.1.1+rev1207-1

1 files changed, 282 insertions, 0 deletions

diff --git a/lib/libdvben50221/en50221_app_dvb.c b/lib/libdvben50221/en50221_app_dvb.c
new file mode 100644
index 0000000..21b2bec
--- /dev/null
+++ b/lib/libdvben50221/en50221_app_dvb.c
@@ -0,0 +1,282 @@
+/*
+    en50221 encoder An implementation for libdvb
+    an implementation for the en50221 transport layer
+
+    Copyright (C) 2004, 2005 Manu Abraham <abraham.manu@gmail.com>
+    Copyright (C) 2005 Julian Scheel (julian at jusst dot de)
+    Copyright (C) 2006 Andrew de Quincey (adq_dvb@lidskialf.net)
+
+    This library is free software; you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as
+    published by the Free Software Foundation; either version 2.1 of
+    the License, or (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+*/
+
+#include <string.h>
+#include <libdvbmisc/dvbmisc.h>
+#include <pthread.h>
+#include "en50221_app_dvb.h"
+#include "en50221_app_tags.h"
+#include "asn_1.h"
+
+struct en50221_app_dvb {
+	struct en50221_app_send_functions *funcs;
+
+	en50221_app_dvb_tune_callback tune_callback;
+	void *tune_callback_arg;
+
+	en50221_app_dvb_replace_callback replace_callback;
+	void *replace_callback_arg;
+
+	en50221_app_dvb_clear_replace_callback clear_replace_callback;
+	void *clear_replace_callback_arg;
+
+	pthread_mutex_t lock;
+};
+
+static int en50221_app_dvb_parse_tune(struct en50221_app_dvb *dvb,
+				      uint8_t slot_id,
+				      uint16_t session_number,
+				      uint8_t * data,
+				      uint32_t data_length);
+
+static int en50221_app_dvb_parse_replace(struct en50221_app_dvb *dvb,
+					 uint8_t slot_id,
+					 uint16_t session_number,
+					 uint8_t * data,
+					 uint32_t data_length);
+
+static int en50221_app_dvb_parse_clear_replace(struct en50221_app_dvb *dvb,
+					       uint8_t slot_id,
+					       uint16_t session_number,
+					       uint8_t * data,
+					       uint32_t data_length);
+
+
+
+struct en50221_app_dvb *en50221_app_dvb_create(struct en50221_app_send_functions *funcs)
+{
+	struct en50221_app_dvb *dvb = NULL;
+
+	// create structure and set it up
+	dvb = malloc(sizeof(struct en50221_app_dvb));
+	if (dvb == NULL) {
+		return NULL;
+	}
+	dvb->funcs = funcs;
+	dvb->tune_callback = NULL;
+	dvb->replace_callback = NULL;
+	dvb->clear_replace_callback = NULL;
+
+	pthread_mutex_init(&dvb->lock, NULL);
+
+	// done
+	return dvb;
+}
+
+void en50221_app_dvb_destroy(struct en50221_app_dvb *dvb)
+{
+	pthread_mutex_destroy(&dvb->lock);
+	free(dvb);
+}
+
+void en50221_app_dvb_register_tune_callback(struct en50221_app_dvb *dvb,
+					    en50221_app_dvb_tune_callback callback,
+					    void *arg)
+{
+	pthread_mutex_lock(&dvb->lock);
+	dvb->tune_callback = callback;
+	dvb->tune_callback_arg = arg;
+	pthread_mutex_unlock(&dvb->lock);
+}
+
+void en50221_app_dvb_register_replace_callback(struct en50221_app_dvb *dvb,
+					       en50221_app_dvb_replace_callback callback,
+					       void *arg)
+{
+	pthread_mutex_lock(&dvb->lock);
+	dvb->replace_callback = callback;
+	dvb->replace_callback_arg = arg;
+	pthread_mutex_unlock(&dvb->lock);
+}
+
+void en50221_app_dvb_register_clear_replace_callback(struct en50221_app_dvb *dvb,
+						     en50221_app_dvb_clear_replace_callback callback,
+						     void *arg)
+{
+	pthread_mutex_lock(&dvb->lock);
+	dvb->clear_replace_callback = callback;
+	dvb->clear_replace_callback_arg = arg;
+	pthread_mutex_unlock(&dvb->lock);
+}
+
+int en50221_app_dvb_ask_release(struct en50221_app_dvb *dvb,
+				uint16_t session_number)
+{
+	uint8_t data[4];
+
+	data[0] = (TAG_ASK_RELEASE >> 16) & 0xFF;
+	data[1] = (TAG_ASK_RELEASE >> 8) & 0xFF;
+	data[2] = TAG_ASK_RELEASE & 0xFF;
+	data[3] = 0;
+
+	return dvb->funcs->send_data(dvb->funcs->arg, session_number, data, 4);
+}
+
+int en50221_app_dvb_message(struct en50221_app_dvb *dvb,
+			    uint8_t slot_id,
+			    uint16_t session_number,
+			    uint32_t resource_id,
+			    uint8_t * data, uint32_t data_length)
+{
+	(void) resource_id;
+
+	// get the tag
+	if (data_length < 3) {
+		print(LOG_LEVEL, ERROR, 1, "Received short data\n");
+		return -1;
+	}
+	uint32_t tag = (data[0] << 16) | (data[1] << 8) | data[2];
+
+	switch (tag) {
+	case TAG_TUNE:
+		return en50221_app_dvb_parse_tune(dvb, slot_id,
+						  session_number, data + 3,
+						  data_length - 3);
+	case TAG_REPLACE:
+		return en50221_app_dvb_parse_replace(dvb, slot_id,
+						     session_number,
+						     data + 3,
+						     data_length - 3);
+	case TAG_CLEAR_REPLACE:
+		return en50221_app_dvb_parse_clear_replace(dvb, slot_id,
+							   session_number,
+							   data + 3,
+							   data_length - 3);
+	}
+
+	print(LOG_LEVEL, ERROR, 1, "Received unexpected tag %x\n", tag);
+	return -1;
+}
+
+
+
+
+
+
+
+
+
+
+static int en50221_app_dvb_parse_tune(struct en50221_app_dvb *dvb,
+				      uint8_t slot_id,
+				      uint16_t session_number,
+				      uint8_t * data, uint32_t data_length)
+{
+	// validate data
+	if (data_length < 9) {
+		print(LOG_LEVEL, ERROR, 1, "Received short data\n");
+		return -1;
+	}
+	if (data[0] != 8) {
+		print(LOG_LEVEL, ERROR, 1, "Received short data\n");
+		return -1;
+	}
+	uint8_t *tune_data = data + 1;
+
+	// parse it
+	uint16_t network_id = (tune_data[0] << 8) | tune_data[1];
+	uint16_t original_network_id = (tune_data[2] << 8) | tune_data[3];
+	uint16_t transport_stream_id = (tune_data[4] << 8) | tune_data[5];
+	uint16_t service_id = (tune_data[6] << 8) | tune_data[7];
+
+	// tell the app
+	pthread_mutex_lock(&dvb->lock);
+	en50221_app_dvb_tune_callback cb = dvb->tune_callback;
+	void *cb_arg = dvb->tune_callback_arg;
+	pthread_mutex_unlock(&dvb->lock);
+	if (cb) {
+		return cb(cb_arg, slot_id, session_number, network_id,
+			  original_network_id, transport_stream_id,
+			  service_id);
+	}
+	return 0;
+}
+
+static int en50221_app_dvb_parse_replace(struct en50221_app_dvb *dvb,
+					 uint8_t slot_id,
+					 uint16_t session_number,
+					 uint8_t * data,
+					 uint32_t data_length)
+{
+	// validate data
+	if (data_length < 6) {
+		print(LOG_LEVEL, ERROR, 1, "Received short data\n");
+		return -1;
+	}
+	if (data[0] != 5) {
+		print(LOG_LEVEL, ERROR, 1, "Received short data\n");
+		return -1;
+	}
+	uint8_t *replace_data = data + 1;
+
+	// parse it
+	uint8_t replacement_ref = replace_data[0];
+	uint16_t replace_pid =
+	    ((replace_data[1] & 0x1f) << 8) | replace_data[2];
+	uint16_t replacement_pid =
+	    ((replace_data[3] & 0x1f) << 8) | replace_data[4];
+
+	// tell the app
+	pthread_mutex_lock(&dvb->lock);
+	en50221_app_dvb_replace_callback cb = dvb->replace_callback;
+	void *cb_arg = dvb->replace_callback_arg;
+	pthread_mutex_unlock(&dvb->lock);
+	if (cb) {
+		return cb(cb_arg, slot_id, session_number, replacement_ref,
+			  replace_pid, replacement_pid);
+	}
+	return 0;
+}
+
+static int en50221_app_dvb_parse_clear_replace(struct en50221_app_dvb *dvb,
+					       uint8_t slot_id,
+					       uint16_t session_number,
+					       uint8_t * data,
+					       uint32_t data_length)
+{
+	// validate data
+	if (data_length < 2) {
+		print(LOG_LEVEL, ERROR, 1, "Received short data\n");
+		return -1;
+	}
+	if (data[0] != 1) {
+		print(LOG_LEVEL, ERROR, 1, "Received short data\n");
+		return -1;
+	}
+	uint8_t *replace_data = data + 1;
+
+	// parse it
+	uint8_t replacement_ref = replace_data[0];
+
+	// tell the app
+	pthread_mutex_lock(&dvb->lock);
+	en50221_app_dvb_clear_replace_callback cb =
+	    dvb->clear_replace_callback;
+	void *cb_arg = dvb->clear_replace_callback_arg;
+	pthread_mutex_unlock(&dvb->lock);
+	if (cb) {
+		return cb(cb_arg, slot_id, session_number,
+			  replacement_ref);
+	}
+	return 0;
+}